Cutting apparatus for corn-harvesters.



No. 851,785. PATBNTED APR. so, 1907,. IW. H. TILSON. CUTTINGI APPARATUSFOR CORN HARVESTERS.

APPLIUATION FILED DEO. 31, 1906.

W/T/VESSES; 7 '5072 f/WENTOR 1 By l V a 4 1n: Nemzls msn-Rs ca.,wAsmNcroN, n. c.

W'ILLIAM H. TILSON, OF PLATNVIEW, TEXAS.

CUTTING APPARATUS FOR CORN-HARVESTERS.

Specification of Letters Patent.

.Patented April 30, 1907.

Application filed December 31,1906. Serial No. 350,179.

k1'0 all 11271/0711', t muy concern.:

citizen of the United States7 residing at` Plainview, in the county otHale and State i of Texas, have invented a new and useful i CuttingApparatus for Corn-Harvesters, ol i which the following is aspecilication.

This invention has relation to cutting apparatus for corn harvesters andit consists-in the novel construction and arrangement of its parts ashereinafter shown and described.

The object of the invention is to provide a blade mounted for rotationand which is provided-at its edge with serrations, some ot the sides ofwhich are rearwardly curved toward their outer portions. The said curvedsides of the serrations are sharpened and are adapted to co-operate witha `lixed blade attached to the stalk guides of the implement.

Said ixed blade is also curved and in e'l'l'ect a y shearing cut isgiven to the stalks as they pass between the rotating blade and thetixed blade.A By such arrangement it requires but a single stroke fromone ol" the rotating blades to sever a stalk. The said rotating blade ismounted upon a wheelwhich in turn is rotated by a sprocket chain. Anannular flange is located upon the upper sur- `face of said wheel andradially extending lingers are bolted or otherwise attached to saidflange. The said Ylingers are in elevated positions with relation to therotating blade, and are adapted to engage the stalks and bend themslightly over the Vl'rxed blade so that the fiber of the stalk may bestretched as it is engaged by the rotating blade and thus facilitate thecutting ot' the same. The ixed blade is located at the rear ends of'corn-guides and in the rear of the said lixed blade is located a skidand up the said skid the stalks as they are cut are shunted by the saidngers and are moved along until they are taken up by other parts of theapparatus for further treatment or manipulation.

In the accompanying drawing z-Figure 1 is a top plan view ot the cuttingapparatus. Fig. 2 is a vertical sectional view of the saine cut on line2 2 of Fig. 1, and Fig. 3 is a section cut on the line 343 of Fig. 1.

The cutting apparatus comprises a vertically disposed shaft l journaledat its lower end in a bearing 2 which in turn is mounted upon the frame3 of the implement. The inner and outer corn-guides 4, 4 are attached attheir rear ends to the traine 3. Said guides are spaced apart insubstantial parali i l i lel relation at their rear portion. Be itknownthat I, VILLiAM lil. TiLsoN, a

The blade 5 is located between the rear portions ol the corn-guides y1,4. The said blade 5 is provided with a cutting edge a portion ol whichextends substantially transversely with relation to the corn-guides e1,Ll and another portion extends at an acute angle with relation to thelongitudinal axes ot tue said guides el. The said portions et thecutting edge ti are joined together by an obtund curved portion. Theinclined skid T is located in the rear ol" the cutting edge ot the blade"he said skid leads up to the horizontal passage S, which for adistance, passes around concentric with the center of the shalt 1. Theside rails t1, t) also follow the said passage 8 and are adapted toconline the butt ends et the stalks upon the said passage in a manner aswill be hereinafter explained.

The wheel l() is 'lixed to the shalt .1 and is provided at its peripherywith the sprocket teeth ll which co-operate with the moving sprocketchain 12 vl'or rotating the said wheel l() and shaft 1. The annularlla-ngc 1 3 is vertically disposed and located at the outer portions olthe said wheel 10. The radially extending 'lingers .14- are bolted orotherwise secured to the outer 'lace ol the i'langc 13. The said iingersare ol such length as to substantiall y extend all the way across thespace between the corn-guides il, -l as they pass over the cutting edgeol' the blade 5. Consequently, the said fingers as they engage the sidesol the stalks that pass between the guides 4l., 4,1- will bend the saidstalks slightly to the rea r over the cutting edge oi" the blade 5 andconsequently, stretch the 'liber ol the stalk and render the saine easyof severance.

The annular blade 15 is attached. to the wheel 1t). Said blade 15 isprovided at its periphery with the sei-rations 1G which have thestraight sides 17 and the curved sides le. The said curved sides .1S aresharpened and are adapted to cooperate with the cutting edges ol theblade 5 in severing the stalks. As the curved sides 1S pass over thecutting edge (5 of the blade 5 thc end of the serrations 16 passesbeyond the transverse portion of the edge t5 and overlaps the portionthereol which extends at an acute angle to the longitudinal axcs'o'lvthe corn-guides 4t. Thus the curved sharpened side 18 ot the scrrations1G pass along the entire length of the transverse portion ol the edge Gol` the blade 5 and the stalks that are in engagement with the saidportions ol the blade 5 are severed.

lOO

IIO

The {ing-ers 14 carry the stalks along and shunt thein up the skid 7 andalong the platw forni 8 froin which point they are delivered to otherparts of the .implement not shown. As shown in the drawing, the blade 15operates l above the blade 5 but the said blades inay be l reversed inposition without altering or inaterially changing their method o Fco-operation.

Having described niy invention what I claim as new and desire to secureby Letters- Pat-ent is 1. A cutting apparatus for corn harvesterscomprising cornguides, a blade fixed between said guides, said bladehaving a cutting edge provided with a portion which eX- tendstransversely with relation to the guides and a portion which extends atan acute argle with relation to the longitudinal axes of the guides, ablade co-operating with said fixed blade, said blade having a serratededge provided with curved sha `pened edges and means for rotating saidblade.

2. A cutting apparatus for corn harvesters comprising cornguides, ablade fixed bey tween the said guides, a skid located at the l rear' ofsaid blade and inclined upward and rearwardly with relation to thesanie, a circular blade cooperatiiig with the lirst said blade andhaving a cutting edge which passes 3o under said skid, and rotatingingers located above the circular blade.

.3. A cutting apparatus for corn harvesters comprising corn-guides, ablade iXed between said guides and having a cutting edge, 3 5

a part of which extends transversely with re-. lation to said guides anda part of which is located at an acute angle with relation to thelongitudinal axes of the guides, a curved portion joining said partstogether, a circular 4o blade journaled for rotation and having aserrated periphery, the sides of which serra-- tions are curved, andsharpened. to co-operate with the cutting edge of the fixed blade.

ln testimony that l claiin the foregoing as 4 5 OAT MARTINE, JOHN Y.LIGON'

